Multiple choice general knowledge science & technology

Which will roll down a hill faster, a can of regular fruit juice or a can of frozen fruit juice?

  1. Regular fruit juice.

  2. Frozen fruit juice.

  3. Depends on the relative sizes and weights of the cans.

  4. Both will roll with same speed.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The can of frozen juice behaves like a solid cylinder: its contents rotate with the can, increasing its moment of inertia. The regular juice can's liquid doesn't rotate as quickly, so less energy goes into rotation and more into translation, making it roll faster.

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